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53 psi Suction line
176 psi high line
75 degree ambient temp at condenser
40 degree suction line temp at condenser and at coil
40 degree supply vent temp at all vents
80 degree high line temp

Obviously the suction line pressure and temp are both too low. And the suction line is 40 degrees and sweating the entire length from condenser to coil.

No obvious kinks in suction line. But the pressing notion of a restriction exists due to the low pressure. However, if the restriction were in the suction line, wouldn't there be a temp difference at both sides of the restriction. Yet the temp is consistent the entire length. I'm thinking a restriction in a feeder tube in the coil.

Thanx for all the replies. I'll get back with the info you have all requested when I get home. For now as far as the questions I can readily answer... The cfm is a result of a return of 286 sq. in. grill vent and a supply of 14" diameter round. Air seams to blow quite nicely from room vents at 40-42 degrees. And yes the room temp was 72 degrees as was the return air going into the furnace.

My fear is that I have liquid refrigerant going into the suction line that could damage the compressor.

Originally posted by airconman are you sure you have enough in it yet? seems like everything is low on it.

I would have believed I was low on refrigerant too, as I did not put any in.

The Airease unit claimed to be charged with enough to cover 20 ft of line and I added 45 ft of line. I did not add any because the vent air temp was colder that I would have expected, the suction line temp was colder than I would have expected and the LP was what I thought it should be.

I thought I had a restriction in one of the feeder tubes in the evap. This would cause all the liquid refrigerant to only use the tubes that weren't restricted resulting in a flooding of the tubes that weren't restricted and a situation where not all of the liquid could evaperate. Thus causing the suction line to take on liquid refrigerant. This would explain why the suc line is so cold and sweating... I thought.

Originally posted by funthea
"I would have believed I was low on refrigerant too, as I did not put any in."

Richard: You may be slightly low, but that is not yur immediate problem. Fix the problem and then recheck yur charge

"I thought I had a restriction in one of the feeder tubes in the evap. This would cause all the liquid refrigerant to only use the tubes that weren't restricted resulting in a flooding of the tubes that weren't restricted and a situation where not all of the liquid could evaperate. Thus causing the suction line to take on liquid refrigerant. This would explain why the suc line is so cold and sweating... I thought."
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No, a restriction will cause a reduction in the amount of refrigerant entering the evap., thus causing a reduction in pressure / sat.temp, but the superheat will be higher, keeping the suction temp up.
The only thing that I know of that would cause yur conditions is low airflow through the coil, or an expansion valve overfeeding the coil.